rock scissors paper

var userChoice = prompt("Do you choose rock, paper or scissors?");
var computerChoice = Math.random();
if (computerChoice < 0.34) {
    computerChoice = "rock";
} else if(computerChoice <= 0.67) {
    computerChoice = "paper";
} else {
    computerChoice = "scissors";
} console.log("Computer: " + computerChoice);
 var compare= function(choice1, choice2)
 {
     if (choice1===choice2)
     {
         return("The result is a tie!")
         }
         else if (choice1==="rock")
         {
             if (choice2==="scissors")
             {
                 return("rock wins")
                 }
                 else
                 {
                     return("paper wins")
                     }
         }

                    else if (choice1==="paper")
             {
                 if (choice2==="scissors")
                 {
                     return("scissors wins")
                     }
                     else {
                         return("paper wins")
                         }
                 }
                 else if (choice1==="scissors")
             {
                 if (choice2==="paper")
                 {
                     return("scissors wins")
                     }
                     else {
                         return("rock wins")
                         }
             }
     }
    compare(userChoice,computerChoice)